Wood-cutting machine



(No Model.)

E. G. PAKE.

, WOOD CUTTING MACHINE. No. 348,7684 Patented Se'pt, 7, 1886.

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M/zf @Y UNITED Saur-riesA EDV/TARD G. FAKE, OF ZILVAUKEE, ASSIGNOR TO SYLVANIS S. MITTS AND PATENT OFFICE.

VILLIAM MERRILL, ROTH OF EAST SAGINAV, MICHIGAN.

WOOD-CUTTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 348,768, dated September '7, 1886.

Application filed April Q2, 1886. Serial No. 199,763. (No model.)

To LZZ whom, t may concern:

Be it known that I, EDWARD G. PAKE, a subject of the Queen of Great Britain, residing at Zilwaukee, in the county of Saginaw and State of Michigan, have invented certain new and useful Improvements in Machines for Cutting up Refuse Vood, of which the following is a specification.

My invention relates to improvements in machines for cutting up refuse wood into fine shavings or sawdust, so that it maybe carried in ordinary sawdust-conveyers, and thus save the expense and labor of handling. These machines are made with a heavy revolving ,i5 wheel carrying knives, in conjunction with a supportingframe, and an angularly-plaeed adjust-able throat-plate, and a hinged inclosin g-case, all arranged so as to do the work more easily and better, and to be more easily adzo justed to compensate for wear, and more accessible for sharpening and changing knives.

I attain these objects by the arrangements described in the following specifications and accompanying drawings, in which- Figure 1 is an elevation showing the revolving wheel A, the supporting-frame H, the feeding-spout G, and hinged case E, partly open, with sides broken away to show the wheel and knives K and adjustable steel throat-plate D.

o Fig. 2 is a vertical section through center of wheel A and shaft G, showing the edges of the knives K projecting through the wheel A at the points F, the knives on one side being setl back of or alternate with those on the 3 5 other side, and they so overlap each other at the inner angle of the wheel that they, when in motion, cut everything clean.

Fig. 3 is a plan of the endwise adjustable throatplate D, which is fastened on the bot- 40 tom'of the feed-spout C by bolts in slotted holes a., so as to be readily adjusted to the knives.

In operation, the refuse is put into the spout G, and, owing to its inclination, and to the fact that the bottom throat-plate, D, is on a plane which, if extended downward, would pass beneath the center of the wheel A, the action of the knives in cutting serves to draw the wood downward with greater velocity as the 5o wheel Arevolves ata high speed. The wheel L having two faces shaped like two frusta of cones with the smallest ends together, and the throat-plate D having the angular or inclined position, the knives operate with a peculiar drawing cut on the wood, doing better work with less expenditure of power than they would if the wheel were cylindrical, or the throat-plate set horizontal, or in a radial plane, as was done before my invention.

Previous to my invention somewhat sinii- 6o lar machines have been made, which had no adjustable removable throat-plate, and the feed-spout nearest the knives would be rap idly worn away until they were so far from the knives that sticks would pass through 6 5 without being cut. My improvement consists in insertingthe hard steel plate D, which can be set close to the knives K, and can be taken out, sharpened, and readj usted, so as to be very close to the knives, and thus do much better 7o work, and with less consumption of power.

Previous to myinvention similar machines have been made which had a case surrounding the wheel, but it was so securely bolted and fastened to the supporting-frame that it could only be removed at the expense of much time and labor whenever it was necessary to examine the knives. My improvement consists in so fastening the case E to the supportingframe II with a hinged joint, J, that it can be 8o readily opened, and the knives can thus be readily examined, sharpened, or changed. The free end of this case or hood L is beveled at b b in such manner that it will when closed llt snugly the lower end of the feedspout C, and prevent the escape upward of chips. y

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is- 9o j l. In a machine for the purpose described, the combination of the knifebearing wheel having a V-shaped periphery, an inclined feed-spout, and an endwise-adjustable throatplate adapted to the periphery and knives of 9 5 the said wheel, substantially as described.

2. In a machine for the purpose described, the combination of the hinged hood E, the inclined feed-spout provided with an adjustable throat-plate and arranged to receive the free Ioo of the Wheel, and a hood adapted to eover this I Wheel and to abut when down against the end of the said spout, substantially as described.

EDVARD G. PARE. \Vituesses:

GEO. W. MERRILL, Louis MOLL. 

